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or email info@caltest.co.uk
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1660
1660
The series 1660 Surge tester is Masterless as it requires no active-master for analysis. Instead, reference settings are determined based upon initial setup with a 'good' workpiece and then simply repeated when needed.
All test results are go/no-go and do not require operator interpretation or judgment. The Series 1660 Surge tester operates as a capacitive-discharge system.
A capacitor is charged with high voltage on the first half of a sine wave and then discharged or dumped into the DUT, through an SCR, on the second half of the sine wave. This sequence continues throughout the dwell time thus stressing the insulation of the DUT with high voltage DC pulses. Because the DUT is characteristically inductive it will automatically respond to the Surge tester's pulsed excitation by generating a counter-electromotive force or flyback action, which produces a ring wave of diminishing proportions.
The criteria for DUT acceptance is based upon the integrated value of this self generated ring-wave. During the surge test, the DUT can be subjected to high instantaneous voltages and currents. However, the average power dissipated by the DUT is relatively low thus avoiding damage to good parts.
Testing Features:
- Digital display of voltage and deviation with digital limit selection
- Unique go, no-go operation with automatic reject
- Tests solenoids, chokes, transformers, stators and other wound products
- Detects shorted turns as well as opens and grounds
- Masterless operation, does not depend on operation judgment
- SCR high voltage switching and solid state control circuitry
